CyberSkin material scientifically reproduces "The Feel of Soft Skin" and the Virtual Touch texture provides the ultimate experience in sexual pleasure and stimulation. With dual density, you can actually feel the hardness of an erection while you enjoy the softness of the tissue around the penis. You will be in awe of the CyberSkin products by simply touching them. There is a vibrating egg inside the penis for added pleasurable sensations. The variable speed battery pack controls the intensity of vibrations, which uses 2 AA size batteries, not included. The ball sacks complete the realism and even tickles the perineum. The penis is 6" long with a diameter of 1 1/2". Climax Personal Lubricant and CyberSkin Renew are included in the packaging. The Cyber Cock utilizes the 21st century to rocket you into ecstasy and what a trip!